EP1785112B2 - Procédé de fabrication d' un article absorbant, dispositif de fabrication d' une âme absorbante, ainsi que l' article absorbant ainsi obtenu. - Google Patents

Procédé de fabrication d' un article absorbant, dispositif de fabrication d' une âme absorbante, ainsi que l' article absorbant ainsi obtenu. Download PDF

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Publication number
EP1785112B2
EP1785112B2 EP20060123969 EP06123969A EP1785112B2 EP 1785112 B2 EP1785112 B2 EP 1785112B2 EP 20060123969 EP20060123969 EP 20060123969 EP 06123969 A EP06123969 A EP 06123969A EP 1785112 B2 EP1785112 B2 EP 1785112B2
Authority
EP
European Patent Office
Prior art keywords
absorbent sheet
absorbent
slitting
pressed
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20060123969
Other languages
German (de)
English (en)
Other versions
EP1785112B1 (fr
EP1785112A1 (fr
Inventor
Tatsuya c/o Technical Center Uni-Charm Co. Saeki
Jun c/o Technical Center Uni-Charm Co. Kudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Unicharm Corp filed Critical Unicharm Corp
Priority to PL06123969T priority Critical patent/PL1785112T3/pl
Publication of EP1785112A1 publication Critical patent/EP1785112A1/fr
Publication of EP1785112B1 publication Critical patent/EP1785112B1/fr
Application granted granted Critical
Publication of EP1785112B2 publication Critical patent/EP1785112B2/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15723—Partitioning batts; Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/5605—Supporting or fastening means specially adapted for sanitary napkins or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means ; Fabric strip fastener elements, e.g. hook and loop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/0419—By distorting within elastic limit
    • Y10T83/0424—By stretching

Definitions

  • EP 0 293 208 discloses an absorptive article comprising fluid absorptive material. At least part of which is constituted by compressed cellulosed based spun sheet which may have slits provided therein.
  • first direction refers to the direction parallel to the direction of conveyance direction of the absorbent sheet
  • second direction refers to the direction orthogonal to the direction of conveyance
  • the stretching mechanism includes a plurality of rotary rollers arranged in order on upper and lower sides of the absorbent sheet at a constant interval in the second direction orthogonal to the direction of conveyance.
  • a slitting mechanism is configured so that a plurality of slitting blades extend in the second direction and in the first direction, the slitting blades are pressed against the absorbent sheet, forming a pressed part that extends both in the second direction and in the first direction.
  • the absorbent article having slits formed therein can be manufactured more assuredly.
  • first rotary rollers and second rotary rollers in the stretching mechanism is not limited particularly.
  • the second rotary rollers may be arranged upstream of the first rotary rollers, or alternatively, the first rotary rollers may be arranged upstream of the second rotary rollers
  • FIG. 1 is a schematic diagram showing a manufacturing apparatus 1 according to the first embodiment of the present invention.
  • the slitting mechanism 20 includes a slitting roller 21, a drive motor as a slitting-roller rotating mechanism, not shown, for rotating the slitting roller 21, and a receiving-side roller 25 arranged opposite the slitting roller 21 and cooperating with the slitting roller 21 to hold the absorbent sheet 105.
  • the receiving-side roller 25 is pressed against the slitting roller 21 by a predetermined pressing force.
  • the receiving-side roller 25 is not limited particularly, and may have a soft surface so as not to damage the cutting edge of the slitting blades 22.
  • the receiving-side roller 25 is rotated in synchronicity with the slitting roller 21 so as not to produce a shearing force in the slitting blades 22. Stretching Mechanism
  • a pair of holding rollers 45a and 45b are arranged outside of the rotary rollers 41b and 41c in the second direction.
  • the position in which the rotary rollers 41a, 41b and 41c are arranged may be adjusted as appropriate in accordance with the strength of the absorbent sheet 105, weight of the crushed-pulp part, strength of tissue, etc., and is not limited particularly. If a force to be applied for stretch is too small, slits cannot be formed sufficiently, whereas if the force is too great, the absorbent sheet 105 itself can be broken.
  • the absorbent bodies 110A to D are configured so that an area in which no slits 155A to D are formed is arranged in a center portion in the length direction. Furthermore, areas in which slits 155A to D are formed are arranged at both sides of the center portion, i.e. the center portion is arranged between the areas which are formed slits.
  • the manufacturing apparatus 1 operates as follows.
  • the rotary roller 41a is freely rotated in association with the passing speed of the absorbent sheet 105 with the rotation shaft 42 as an axis.
  • the passing absorbent sheet 105 is pressed and bent upwardly by the rotary roller 41a.
  • the absorbent body 110A is arranged so that the periphery of the area opposite a wearer's vaginal opening 111 corresponds to the 500 g/m 2 weight area of the crush-pulp part, the periphery of the opposite area 111 has a relatively high stiffness. Therefore, twisting of the absorbent body 110A due to excessive flexibility of the opposite area can be restrained.
  • the stretching mechanism 40A includes seven rollers 41A arranged in order on the upper and lower sides of the absorbent sheet 105A at a constant interval in the second direction orthogonal to the direction of conveyance of an absorbent sheet 105A.
  • the stretching mechanism 40B includes a pair of rotary rollers 41B each having on the external surface a plurality of projections 44 extending in the second direction orthogonal to the direction of conveyance.
  • the pair of rotary rollers 41B have a width g greater than the width-direction dimension of an absorbent sheet 105B.
  • the absorbent sheet 105B When conveyed to pass through the stretching mechanism 40B, as the plurality of projections 44 of the pair of rotary rollers 41B extending in the second direction engage with each other, the absorbent sheet 105B, having pressed parts formed therein, is engaged with the engaging part. With this, the absorbent sheet 105B is stretched in the direction of conveyance to allow the slitting blades to penetrate into the pressed part extending in the second direction, forming the slits in the pressed part.
  • the manufacturing apparatus 1 was configured as in the first embodiment, by which the absorbent body 110A was manufactured from the continuous absorbent sheet 105. Taking samples of a pressed absorbent sheet before provided to the manufacturing apparatus 1, an absorbent sheet immediately after passing through the slitting mechanism 20, and an absorbent sheet immediately after passing through the stretching mechanism 40, values of stiffness of the absorbent sheets were measured.
  • Gurley bending resistance test is a stiffness test method (Gurley method) for paper and paperboard by a loading bending method described in Paper and Pulp Test Method No. 40-83, published by Japan Technical Association of the Pulp and Paper Industry (Japan TAPPI).
  • the pressed absorbent sheet was 293 mg
  • the absorbent sheet immediately after passing through the slitting mechanism 20 was 355 mg
  • the absorbent sheet immediately after passing through the stretching mechanism 40 was 205 mg.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (3)

  1. Procédé de fabrication d'un corps absorbant (110) pour un article absorbant (100), caractérisé en ce que le procédé comporte :
    presser une pluralité de lames à refendre (22) contre une feuille absorbante continue (105), la pluralité de lames à refendre (22) s'étendant dans une première direction ;
    étirer, dans une direction perpendiculaire à la première direction, la feuille absorbante (105) contre laquelle les lames à refendre de la pluralité de lames à refendre (22) sont pressées et former des fentes (155A, 155B, 155C, 155D) dans la feuille absorbante ; et
    couper la feuille absorbante (105), dans laquelle les fentes (155, 155B, 155C, 155D) sont formées, en une forme prédéterminée, et former le corps absorbant (110A, 110B, 110C, 110D) ;
    dans lequel
    un mécanisme à refendre (20) est configuré de sorte que les lames à refendre de la pluralité de lames à refendre (22) sont pressées contre la feuille absorbante (105) transportée par le mécanisme de transport ;
    un mécanisme de coupe (30) coupe la feuille absorbante (105), contre laquelle les lames à refendre de la pluralité de lames à refendre (22) sont pressées ; et
    un mécanisme d'étirage (40) est disposé en amont du mécanisme de coupe (30), le mécanisme d'étirage (40) étirant, dans une deuxième direction (S) perpendiculaire à la première direction, la feuille absorbante (105) ;
    dans lequel le mécanisme d'étirage (40) comporte une pluralité de cylindres rotatifs (41a, 41b, 41c) disposés chacun dans l'ordre sur les côtés supérieurs et inférieurs de la feuille absorbante (105) à un intervalle constant dans la deuxième direction, la pluralité de cylindres rotatifs comprenant un cylindre (41b, 41c) ayant une coupe transversale obtenue en coupant un arc de cercle d'un angle prédéterminé (412b, 412c) au niveau d'une forme circulaire,
    dans lequel le mécanisme à refendre comporte un cylindre à refendre (21), et
    dans lequel une longueur d'un arc de cercle (411b, 411c) restant sans être coupée correspond essentiellement à une longueur dans la direction de la rotation d'une zone du cylindre à refendre dans lequel les lames à refendre de la pluralité de lames à refendre sont disposées.
  2. Appareil (1) de fabrication d'un corps absorbant pour un article absorbant (100A), caractérisé en ce que l'appareil comporte :
    un mécanisme de transport qui transporte une feuille absorbante continue (105) ;
    un mécanisme à refendre (20) configuré de sorte que les lames à refendre d'une pluralité de lames à refendre (22) sont pressées contre la feuille absorbante (105) transportée par le mécanisme de transport, la pluralité de lames à refendre (22) s'étendant dans une première direction ;
    un mécanisme de coupe (30) qui coupe la feuille absorbante (105), contre laquelle les lames à refendre de la pluralité de lames à refendre (22) sont pressées, et forme le corps absorbant (110) ; et
    un mécanisme d'étirage (40) disposé en amont du mécanisme de coupe (30), le mécanisme d'étirage (40) étirant, dans une deuxième direction (S) perpendiculaire à la première direction, la feuille absorbante (105) contre laquelle les lames à refendre de la pluralité de lames à refendre (22) sont pressées, et formant des fentes (155A) dans la feuille absorbante ;
    dans lequel le mécanisme d'étirage (40) comporte une pluralité de cylindres rotatifs (41a, 41b, 41c) disposés chacun dans l'ordre sur les côtés supérieurs et inférieurs de la feuille absorbante (105) à un intervalle constant dans la deuxième direction, la pluralité de cylindres rotatifs comprenant un cylindre (41b, 41c) ayant une coupe transversale obtenue en coupant un arc de cercle d'un angle prédéterminé (412b, 412c) au niveau d'une forme circulaire,
    dans lequel le mécanisme à refendre comporte un cylindre à refendre (21), et
    dans lequel une longueur d'un arc de cercle (411b, 411c) restant sans être coupée correspond essentiellement à une longueur dans la direction de la rotation d'une zone du cylindre à refendre dans lequel les lames à refendre de la pluralité de lames à refendre sont disposées.
  3. Appareil (1) selon la revendication 2, dans lequel la première direction (F) est parallèle à une direction de transport de la feuille absorbante, et
    dans lequel les cylindres rotatifs de la pluralité de cylindres rotatifs (41a, 41b, 41c) pressent et plient chacun la feuille absorbante (105) d'un côté opposé à un côté sur lequel les cylindres rotatifs sont disposés, la pluralité de cylindres rotatifs (41a, 41b, 41c) étirant, dans la deuxième direction (S), la feuille absorbante (105) contre laquelle les lames à refendre de la pluralité de lames à refendre (22) sont pressées, et formant les fentes (155A) dans la feuille absorbante (105).
EP20060123969 2005-11-14 2006-11-13 Procédé de fabrication d' un article absorbant, dispositif de fabrication d' une âme absorbante, ainsi que l' article absorbant ainsi obtenu. Not-in-force EP1785112B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06123969T PL1785112T3 (pl) 2005-11-14 2006-11-13 Sposób wytwarzania artykułu absorpcyjnego, urządzenie do wytwarzania korpusu absorpcyjnego oraz artykuł absorpcyjny wytwarzany z ich pomocą

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005329512A JP4859439B2 (ja) 2005-11-14 2005-11-14 吸収性物品用吸収体の製造装置、及び吸収性物品用吸収体

Publications (3)

Publication Number Publication Date
EP1785112A1 EP1785112A1 (fr) 2007-05-16
EP1785112B1 EP1785112B1 (fr) 2009-11-04
EP1785112B2 true EP1785112B2 (fr) 2013-06-26

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ID=37547464

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EP20060123969 Not-in-force EP1785112B2 (fr) 2005-11-14 2006-11-13 Procédé de fabrication d' un article absorbant, dispositif de fabrication d' une âme absorbante, ainsi que l' article absorbant ainsi obtenu.

Country Status (7)

Country Link
US (1) US8071837B2 (fr)
EP (1) EP1785112B2 (fr)
JP (1) JP4859439B2 (fr)
AT (1) ATE447387T1 (fr)
DE (1) DE602006010155D1 (fr)
ES (1) ES2335031T3 (fr)
PL (1) PL1785112T3 (fr)

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US9138031B2 (en) 2011-02-16 2015-09-22 3M Innovative Properties Company Method of making a mechanical fastening strip and reticulated mechanical fastening strip therefrom
US9044356B2 (en) 2011-05-19 2015-06-02 Kimberly-Clark Worldwide, Inc. Absorbent article having enhanced leakage protection
US8847002B2 (en) * 2011-05-19 2014-09-30 Kimberly-Clark Worldwide, Inc. Absorbent article containing apertures arranged in registration with an embossed wave pattern
JP6138924B2 (ja) 2012-05-16 2017-05-31 スリーエム イノベイティブ プロパティズ カンパニー 冠面を使用して機械的ファスナを製造する方法
EP2849601B1 (fr) 2012-05-16 2017-08-02 3M Innovative Properties Company Procédé de fabrication d'un élément de fixation mécanique à l'aide de disques divergents
WO2013170480A1 (fr) 2012-05-18 2013-11-21 3M Innovative Properties Company Procédé de fabrication d'une fixation mécanique et appareil comprenant un rouleau à protubérances
US9173782B2 (en) 2013-03-28 2015-11-03 Kimberly-Clark Worldwide, Inc. Coordinated apertured and embossed topsheet layer materials, and absorbent articles containing such
US9314962B2 (en) 2013-05-10 2016-04-19 3M Innovative Properties Company Method of separating strands on a stretching surface
US10722093B2 (en) 2013-12-18 2020-07-28 3M Innovative Properties Company Cleaning article
JP6399826B2 (ja) * 2014-06-30 2018-10-03 ユニ・チャーム株式会社 吸収性物品
CN112020342A (zh) 2018-04-25 2020-12-01 3M创新有限公司 制造层压物的方法

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Publication number Priority date Publication date Assignee Title
US5143679A (en) † 1991-02-28 1992-09-01 The Procter & Gamble Company Method for sequentially stretching zero strain stretch laminate web to impart elasticity thereto without rupturing the web
US5925299A (en) † 1993-10-22 1999-07-20 The Procter & Gamble Company Methods for making non-continuous absorbent cores comprising a porous macrostructure of absorbent gelling particles
US5628097A (en) † 1995-09-29 1997-05-13 The Procter & Gamble Company Method for selectively aperturing a nonwoven web
WO2004058497A1 (fr) † 2002-12-20 2004-07-15 The Procter & Gamble Company Voile a texturation inverse
WO2004059061A1 (fr) † 2002-12-20 2004-07-15 The Procter & Gamble Company Voile lamine tufte
WO2004058118A1 (fr) † 2002-12-20 2004-07-15 The Procter & Gamble Company Voile lamine tufte

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EP1785112B1 (fr) 2009-11-04
US20070107571A1 (en) 2007-05-17
PL1785112T3 (pl) 2010-03-31
DE602006010155D1 (de) 2009-12-17
JP4859439B2 (ja) 2012-01-25
JP2007135646A (ja) 2007-06-07
US8071837B2 (en) 2011-12-06
EP1785112A1 (fr) 2007-05-16
ATE447387T1 (de) 2009-11-15
ES2335031T3 (es) 2010-03-18

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